I think anger and depression has a lot to do with illness. I try to get all my bad feelings out in the open so I'm not dwelling on them.
I always get a stomach ache when I'm upset.
I'm not good with sticking up for myself but I'm learning. And I think that's a healthy thing.
I also try to get some kind of exersize in and try to stay away from negative people as they can really wear you down.